#1F87BC#1F87BC

#1F87BC is a mid, vivid cyan. Relative luminance 0.212; OKLCH L 59.2% C 0.120 H 237.3°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#1F87BC
RGB	rgb(31, 135, 188)
HSL	hsl(200, 72%, 43%)
HSV	hsv(200, 84%, 74%)
CMYK	cmyk(83.5%, 28.2%, 0%, 26.3%)
CIE-LAB	lab(53.22, -9.63, -35.68)
CIE-LCH	lch(53.22, 36.95, 254.90°)
OKLab	oklab(59.21% -0.0649 -0.101)
OKLCH	oklch(59.21% 0.12 237.3)
XYZ	xyz(18.3025, 21.2478, 50.7038)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F87BC #BC541F

analogous

#1FBCA2 #1F87BC #1F38BC

triadic

#1F87BC #BC1F87 #87BC1F

tetradic

#1F87BC #A21FBC #BC541F #38BC1F

square

#1F87BC #A21FBC #BC541F #38BC1F

split-complementary

#1F87BC #BC1F38 #BCA21F

monochromatic

#0E3C53 #166187 #1F87BC #3AA7DE #6EBEE7

Accessibility & contrast

On white

4.00

#1F87BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#1F87BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F87BC

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F87BC	#FFFFFF	#000000	##000000
##1F87BC	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D87BE

Deuteranopia (green-blind)

#5979BB

Tritanopia (blue-blind)

#009599

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #1f87bc;
/* rgb */ color: rgb(31, 135, 188);
/* oklch */ color: oklch(59.2% 0.120 237.3);

Tailwind

colors: {
  custom: {
    50: '#76a9d0',
    500: '#1f87bc',
    950: '#000000',
  },
}

SCSS

$custom: #1f87bc;
$custom-light: #76a9d0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f87bc",
  "rgb": {
    "r": 31,
    "g": 135,
    "b": 188
  },
  "hsl": {
    "h": 200.255,
    "s": 71.689,
    "l": 42.941
  },
  "oklch": {
    "l": 0.59205,
    "c": 0.12004,
    "h": 237.3
  },
  "luminance": 0.2125
}

Semantic roles & 50–950 ramp

primary

#1F87BC

secondary

#CD8B69

accent

#7639EE

background

#F7FAFC

surface

#EEF4F9

border

#C9CED2

text

#0A1014

muted

#7C7F82

Preview Lab

Preview with #1F87BC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →